Nut-locking washer.



JJCOOKERLEY.

NUT LOOKING WASHER.

APPLICATION FILED JULY 6, 1911.

1,038,528, Patented Sept.17;1912.

Inventor Attornevs Witnesses Q/ 8 JOSIAH COOKERLEY, OF SOUTH MILFORD,INDIANA.

nunriooarne wasrrnn.

Specification of Letters Patent.

Patented Sept. r2, rare.

Application filed July 6, 1911. Serial No. 637,131

To all whom it may concern:

Be it known that I, Josran COOKERLEY, a citizen of the United States,residing at Smith hfiiiltord, in the county of Lagrange and. State ofIndiana, have inven ed a new the following is a sp eciiieation.

This inrentio relates to nut-locking washers, and has t t'or its objectto provide an improved means for locking nuts on bolts which shall beefiirient, simple and cheap to manufacture.

In a device of this character the said clmracteristics are necessary toprovide for the commercial success thereof. and it is in \lOW of thesimplicity of this device that it presents a novel nut-lock washer.

This device comprises a rectangular plate of spring steel or sheet metalof suitable centrally thereof and the ends bent upward v and inwardforming lips which converge toward'each other and being spaced slightlyapart at their adjoiningends, said lips being provided with concavcdnotches at their adjacent edges which form an opening through the lipsconcentric with the screwthreaded opening, for the passage of a bolttheretln'ough. These notches form teeth which are adapted t5 bite thenut to carry the washer along with the same.

This invention is illustrated in the accompanying 'drawing, in wvliiclisimilar reference. characters indicate similar parts, and in which,

Figure 1 is an elevation of the washer as applied to a' bolt and'nut,the nut and washer beingshown in section. Fig. 2 is a plan View oil. thewasher. Fig. 8 is a sectional view of the washer.

Referring specifically to the drawings, 8 indicates the main portion orbody of the washer comprising the intermediate portion of therectangular plate of spring steel, it being preferably square incontour. lhe body 8 has a central screw-threaded opening 11 therein. Thelips or ends of the plates are hulicated at 9, which converge upwardand. a e spaced slightly apart at their upper ends. 'ihese lips 9 haveat their adjacent ends concaved notches 10 which form an opening throughthe lips ctnicentric with the screw-threaded opening 11a The notches l0also form oppositely disposed teeth! or prongs 12 at each side of thelips.

A bolt- 5 bearing a head 6 is shown as inserted through av hole in theobjects 13, and 7 indicates a not on the screw-threaded end of the boltunder which nut is arranged the washer.

The washer and nut are applied as fol-- lows: The washer is screwed onthe screwthreaded end of the bolt 5 to bring the body thereof againstthe object- 13 and the nut is screwed on the bolt over the washer. Asthe nut is tightened the lips 9 are bent toward the body 8 and the toothor prong 12 on each side, projecting opposite to the direction ofrotation of the nut, catches in the under side of the nut andcarries thewasher with the nut to tighten both the washer and nut on the object.The washer being square :an be engaged by a wrench together with the nutto ti'lrn'them both simultaneously. Upon reversing the rotation of thenut the opposite teeth 12 engage the inner face of the nut to rotate thewasher and thus to release the washer. Upon clamping the nut verytightly over the washer the concaved edges oi the lip 9 may be made tobite the threads on the bolt to hold the various parts in lockedposition. A device constructed in accordance with this description isvery cheap to manufacture, and is convenient in application andeflicient in its use.

it is to be noted that the notches 10 define an opening which is largerthan the opening 11. in the body portion 8 of the washer. Owingto thisconstruction, the nut 7 may be rotated, to aline the edges of the nut 7with the edges of the body 8, so that the nut and the washer may beengaged for sinniltaneous rotation by a wrench, without causing-the endsof the lips 9 to bite into the threads of the bolt 5. The nut and theboltmay then be rotated together until the body portion of the washer isin abutment with the object 13.

Having described my invention what I claim new is A device of the classdescribed comprising a belt; a nut thereon; and a locking washerinterposed between the nut and the object through which the bolt passes;the washer comprising a body portion of the same contour as the nutwhereby the nut and'the washer may be engaged simultaneously by avwrench and upturned, converging lips engagi g terminally with the nut,and compressible by the nut to engage with the threads of the bolt;there being an opening in the body, threaded to engage With the bolt,and concaved notches in the ends of lips, the notches defining anopening which is larger than the opening in the body, whereby the nutmay be rotated, independently of the Washer, to aline the'peripheries ofthe nut and of the washer, for engagement by the Wrench, whereby thewasher VVitne 23.. i3. COOKERLY, W. T. Moreen.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. C'.

